How to export your GPX file
To make an overlay you need a GPX or TCX file — the route and timing of your run. Here's how to get one from the most common watches and apps. Menus move as apps update, but the option is usually on the activity, under a share or ⋯ menu, labelled Export or GPX. TCX works exactly the same way — where the same menu offers it, either format is fine.
Garmin
The Garmin Connect app can't export, but the website can — and the website works in your phone's browser too. Open connect.garmin.com in Chrome or Safari (not the app), sign in, open the activity, tap the gear or ⋯ icon at the top right, and choose Export to GPX. Skip Export Original: that's a .zip with a .fit file inside, which RunReel doesn't read.
Apple Watch & iPhone
The Fitness app has no export button, but the Health app hands you every route as a GPX, for free:
- In Health, tap your picture, then Export All Health Data, and save the zip to Files.
- In Files, tap the zip to unzip it. Each run is its own GPX in apple_health_export/workout-routes, named by date.
It exports all of your health data, so it can take a minute and the file can be large. To export one run at a time instead, a companion app such as HealthFit or RunGap can do it (paid features).
Samsung Galaxy Watch & Samsung Health
Samsung Health saves a GPX itself. Open the run, tap ⋮, choose to share the route as a GPX file (in Korean: "GPX 파일로 경로 공유"), then Save. The file goes to My Files › Download › Samsung Health › GPX.
No such option? Turn on location in Samsung Health's own settings. It works for runs recorded after that.
Strava
Strava exports from its website only: open the activity on strava.com, click the ⋯ menu and choose Export GPX. On a phone, open strava.com in your browser rather than the app.
Strava's app left the app stores in South Korea in March 2025, and Strava lists South Korea as a restricted country. In Korea, use your watch's own export above.
COROS, Suunto, Polar
All three export from their own app or website. On COROS, open the workout, tap the menu at the top right and choose Export Data → GPX. On Suunto, open the workout and choose ⋯ → GPX. On Polar Flow, open the session, then Export → GPX. Where an app offers .fit too, pick GPX or TCX — those are what RunReel reads.
Nike Run Club, RunDay and other apps without an export
Some popular running apps, Nike Run Club and RunDay (런데이) among them, don't export a file at all, so there's nothing to bring here. Record your next run with your watch, Samsung Health or Apple Watch as well, and export that.
Anything else
Look for Export, Share or GPX on the activity. If your app syncs to Garmin Connect or Apple Health, export from there instead.